P0123 2004 Infiniti G35 Code - Throttle Position Sensor/Switch '1' Circuit High Input
Quick Answer
The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0123 2004 Infiniti G35 indicates Throttle Position Sensor/Switch '1' Circuit High Input.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0123 2004 Infiniti G35 Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0123 2004 Infiniti G35?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
- Faulty accelerator pedal position sensor
How to Fix the DTC P0123 2004 Infiniti G35?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0123 2004 Infiniti G35 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0123 2004 Infiniti G35 Code
1. What are the common symptoms of OBDII code P0123 in a 2004 Infiniti G35?
- Common symptoms include poor acceleration, engine stalling, rough idling, and the vehicle going into limp mode.
2. What does the OBDII code P0123 in a 2004 Infiniti G35 mean?
- The code P0123 indicates that the throttle position sensor/switch '1' circuit is reporting a high input signal to the engine control module (ECM).
3. What are the possible causes of OBDII code P0123 in a 2004 Infiniti G35?
- The possible causes include a faulty throttle position sensor, wiring or connector issues, a stuck throttle plate, or a malfunctioning ECM.
4. How can I diagnose the OBDII code P0123 in a 2004 Infiniti G35?
- You can diagnose the code by checking the throttle position sensor's voltage readings, inspecting the wiring and connectors for any damage, and performing a throttle body inspection.
5. Can I still drive my 2004 Infiniti G35 with OBDII code P0123?
- It is not recommended to drive the vehicle with code P0123 as it can lead to performance issues and potential safety hazards. It's best to address the issue promptly.
6. How can I repair OBDII code P0123 in a 2004 Infiniti G35?
- The repair typically involves replacing the throttle position sensor if it's faulty, repairing any damaged wiring or connectors, and clearing the code with a diagnostic tool.
7. Is it necessary to reset the ECM after repairing OBDII code P0123 in a 2004 Infiniti G35?
- Yes, it's recommended to reset the ECM after repairing the issue to clear the error code and allow the ECM to relearn the throttle position sensor's new readings.
8. Can a dirty throttle body cause OBDII code P0123 in a 2004 Infiniti G35?
- Yes, a dirty throttle body can cause erratic readings from the throttle position sensor, leading to code P0123. Cleaning the throttle body may help resolve the issue.
9. How long does it take to repair OBDII code P0123 in a 2004 Infiniti G35?
- The repair time can vary depending on the exact cause of the code. It can take anywhere from 30 minutes to a few hours to diagnose and repair the issue.
10. Will OBDII code P0123 in a 2004 Infiniti G35 affect fuel economy?
- Yes, code P0123 can affect fuel economy as it can lead to improper air-fuel mixtures and engine performance, resulting in decreased fuel efficiency.
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